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Arboriculture Glossary of Terms
There are 1070 entries in this glossary.
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| Term | Definition |
|---|---|
| floating anchor |
anchor point in a rigging system that can be moved anywhere between two points.
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| floating false crotch |
false crotch installed on an ascent line anchored high in a tree.
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| flush cut |
pruning cut through and/or removing the branch collar, causing unnecessary injury to the trunk or parent stem.
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| foliage |
leaves of a plant.
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| foliar analysis |
laboratory analysis of the mineral content of foliage.
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| foliar application |
applying a fertilizer, pesticide, or other substance directly to the foliage.
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| footlock (footlocking) |
method of ascending a rope by wrapping the rope around the feet. See secured footlock.
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| force |
any action or influence causing an object to accelerate/decelerate. Calculated as mass multiplied by acceleration. Is a vector quantity.
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| forestry |
management of forests, using silvicultural treatments, to provide a variety of forest benefits including timber, aesthetics, wildlife habitat, and/or recreational opportunities.
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| frass |
fecal material and/or wood shavings produced by insects.
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| French Prusik |
type of friction hitch used in climbing and rigging.
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| friction |
specific type of force that resists the relative motion between two objects in contact. The direction is always opposite the motion.
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| friction device |
device used to take wraps in a load line to provide friction for controlled lowering or climbing.
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| friction hitch |
any of numerous knots used in tree climbing or rigging that may alternately slide along and then grip a rope.
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| fronds |
large, divided leaf structures found in palms and ferns.
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| frost crack |
vertical split in the wood of a tree, generally near the base of the bole, caused by internal stresses and low temperatures. Radial shake.
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| fruiting body |
reproductive structure of a fungus. The presence of certain species may indicate decay in a tree. See conk.
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| fungicides |
chemical compounds that are toxic to fungi.
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| fungus (pl. fungi) |
group of organisms from the kingdom Fungi, including yeasts, molds, mushrooms, and smuts. Typically multicellular, saprophytic, or parasitic and lacking vascular tissue and chlorophyll. Reproduces by spores borne in fruiting bodies.
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| fuses |
devices on electrical conductors that protect electrical systems by interrupting current in response to sudden increases in current caused by electrical shorts or overloads.
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